. >>> thousands are gathered in front of the presidential palace in cairo waiting for president mohammed morsi to speak. this is after a night of violent clashes that killed six people and killed more than 670 injured. tanks, armored personnel carriers clearing the area, scattering clouds of 0 protesters fighting in the streets. the latest spiral of violence after morsi's sweeping power grab. supporters of the muslim brotherhood who back president morsi clashing with opponents saying he made himself a dictator. reza sayah in cairo, the president not spoken. when he does, what might he say? >> reporter: well, nobody really knows what he's going to say other than members of his inner circle, but certainly, there's a lot of pressure on president morsi to calm down this conflict that's been escalating over a few days, especially the last night. we've eagerly waiting for him to speak, but he hasn't spoken yet. we're not quite sure what the delay is. initially, word was that at 6:00 p.m. local time, three and a half hours ago, he was going to deliver his speech and then reports came that this